Have you ever wondered which nonprofits have the most followers on twitter? The following is a regularly updated list of the 50 top nonprofits on twitter based on total twitter followers.

Feel free to reach out to us or to recommend an organization for us to evaluate for this list.

Note: Colleges, universities, and individual churches were not evaluated for this list.

Top Nonprofits on Twitter

Last Updated August 19th, 2013

Top Nonprofits on Twitter - UNICEF1. United Nations Children´s Fund (UNICEF)
unicef.org | twitter profile

Nonprofit with most twitter followers - Wikileaks2. WikiLeaks
wikileaks.org | twitter profile

Best Non-profits on Twitter - NPR3. National Public Radio
npr.org | twitter profile

Ted Talks - Nonprofit with most twitter followers4. TEDTalks
ted.com | twitter profile

Top Nonprofits on Twitter - PBS5. Public Broadcasting Service 
pbs.org | twitter profile

Nonprofits with most twitter followers - MOMA6. Museum of Modern Art
moma.org | twitter profile

7. charity: waterTop Nonprofits on Twitter - Charity Water
charitywater.org | twitter profile

8. United Nations High Commissioner for RefugeesNonprofits with most twitter followers - UNHCR
unhcr.org | twitter profile

Nonprofits with most twitter followers - WWF9. World Wildlife Fund
worldwildlife.org | panda.org |twitter profile

Best Non-profits on Twitter - American Red Cross10. American Red Cross
redcross.org | twitter profile

Best Non-profits on Twitter - RED11. (RED)
joinred.com | twitter profile

Nonprofits with most twitter followers - Gates Foundation12. Bill and Melinda Gates Foundation
gatesfoundation.org | twitter profile

Top Nonprofits on Twitter - Smithsonian13. Smithsonian Institute
si.edu | twitter profile

Nonprofits with most twitter followers - Green Peace14. Green Peace
greenpeace.org | twitter profile

Human Rights Watch15. Human Rights Watch (HRW)
hrw.org | twitter profile

Amnesty International Logo16. Amnesty International USA
amnestyusa.org | twitter profile

Best Non-profits on Twitter - ONE Campaign17. ONE
one.org | twitter profile

Save the Children Logo18. Save the Children
savethechildren.org | twitter profile

Nonprofits with most twitter followers - Do Something19. Do Something
dosomething.org | twitter profile

Nonprofits with most twitter followers - room to read20. Room to Read
roomtoread.org | twitter profile

In order to preserve page load time, the remaining 30 top nonprofits on twitter will be listed without images or follow buttons.  Last updated 8/19/13

21. Metropolitan Museum of Art
metmuseum.org | twitter profile
Followers – 599k

24. Mayo Foundation
mayoclinic.org | twitter profile
Followers - 595k

22. Water.org
water.org | twitter profile
Followers - 578K

23. CARE
care.org | twitter profile
Followers – 531K

27. Livestrong
livestrong.org | twitter profile
Followers - 528k

25. Kiva
kiva.org | twitter profile
Followers - 517k

26. Creative Commons
creativecommons.org | twitter profile
Followers – 517K

34. World Food Program USA
wfp.org | twitter profile
Followers - 474k

28. Case Foundation
casefoundation.org | twitter profile
Followers – 465k

30. Echoing Green
echoinggreen.org/ | twitter profile
Followers – 443k

31. Acumen Fund
acumenfund.org | twitter profile
Followers – 417k

38. Oxfam International
oxfam.org | twitter profile
Followers - 414k

32. Ashoka
ashoka.org/ | twitter profile
Followers - 410k

33. Skoll Foundation
skollfoundation.org | twitter profile
Followers - 406k

35. People for the Ethical Treatment of Animals
peta.org | twitter profile
Followers - 404k

36. American Cancer Society
cancer.org | twitter profile
Followers - 401k

37. Witness
witness.org/ | twitter profile
Followers - 365k

29. HopeMob
hopemob.org | twitter profile
Followers – 340k

41. Doctors Without Borders
doctorswithoutborders.org | twitter profile
Followers - 320k

40. Samasource
samasource.org/ | twitter profile
Followers - 302k

42. World Vision
wvi.org | twitter profile
Followers - 301k

 43. United States Olympic Committee
teamusa.org | twitter profile
Followers – 296K

47. Human Rights Campaign
hrc.org | twitter profile
Followers – 295K

39. Invisible Children
invisiblechildren.com | twitter profile
Followers – 290k

44. New York Public Library
nypl.org/ | twitter profile
Followers - 284k

46. A Broader View
abroaderview.org | twitter profile
Followers - 284k

50. Clinton Foundation
clintonfoundation.org | twitter profile
Followers - 260K

45. St. Jude’s Children’s Research Hospital
stjude.org | twitter profile
Followers - 260k

48. Rotary Foundation of Rotary International
rotary.org | twitter profile
Followers - 206k

49. The Humane Society
humanesociety.org | twitter profile
Followers - 202K